CVE-2021-20845

HIGH 8.8CVE-2021-20845 · Published 24/11/2021 · updated 17/06/2026

In short

CVE-2021-20845 is a HIGH (CVSS 8.8) vulnerability affecting unlimited sitemap generator (xml-sitemaps).
Chance of exploitation in the next 30 days (EPSS): 0.52%, higher than 44.7% of all vulnerabilities.
Fix: update to 8.2 or later.

Package	Affected versions	Patched versions
unlimited sitemap generator xml-sitemaps	`< 8.2`	`8.2`

Description

Cross-site request forgery (CSRF) vulnerability in Unlimited Sitemap Generator versions prior to v8.2 allows a remote attacker to hijack the authentication of an administrator and conduct arbitrary operation via a specially crafted web page.

References

jvn.jp/en/jp/JVN58407606/index.html · Third Party Advisory
xml-sitemaps.com/news-20210831.html · Release Notes
xml-sitemaps.com/standalone-google-sitemap-generator.html · Product

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